JPS61250232A - Pile penetrating and drawing machine with pile mover - Google Patents

Abstract

PURPOSE:To raise the efficiency of penetrating and drawing operations of piles by a method in which a movable base is provided on a saddle, an elevating head and a holding frame to hold plural piles in an erected form are provided to the front of the base, and piles are horizontally moved to the elevating head. CONSTITUTION:Existing piles P0 are grasped by the clamps 2 of a saddle 1 with a base 3 consisting of a back and forth-movable base 3a provided on the upside of the saddle 1 and a bilaterally movable base 3b. A vertically movable and turnable elevating head 5 is provided to the front of the base 3b in such a way that it is leveled with the base 3 when being lowered to the lowest position. A pile-supplying mechanism consisting of a pile-holding frame 11 to hold plural piles P in an erected state and a pile mover 12 is provided to the upside of the base 3. Piles P are grasped one by one, set in the head 5, turned at 90 deg., and then pressed into the ground. The working time can thus be shortened, and the number of workers can also reduced.

Description

Detailed Description of the Invention (Industrial Utilization Public Expenses) The present invention is a pile press-fitting system that allows a plurality of piles such as steel sheet piles to be loaded onto a base and efficiently supply or remove the piles from the lifting head. This is related to a pulling machine, and in particular, it can automatically supply and remove piles even at pile driving sites where there are obstacles above, such as under bridges, making it impossible to use long piles, and where it is difficult to supply piles. This invention relates to a pile press-in/extraction machine that can efficiently perform pile press-in/extraction work.

(Conventional technology) In civil engineering work to construct cofferdams, retaining walls, etc., various steel sheet piles are arranged in a line and driven into the ground.
The extraction and removal will be carried out. The pile press-in/extraction machine used in this type of work is used to press-in or pull out piles by fixing the entire device onto piles that have already been driven into the ground (existing piles), and as the pile press-in or pull out work progresses. There is a self-propelled pile press-in/extraction machine that moves over the existing desk.

This type of pile press-in/extraction machine generally consists of a self-propelled mechanism mounted on an existing desk, a base that can be moved back and forth, left and right, a support that is erected on the base, and a pile that slides up and down along the support to drive the pile into the ground. It consists of a lifting head that performs press-fitting and pulling out.

However, with this type of pile press-in/extraction machine, if there is an obstacle above, such as under a bridge, the column that guides the lifting head up and down gets in the way, so it cannot be used in places with upward spatial restrictions. Ta.

Therefore, the present inventor has already proposed in Japanese Patent Application No. 58-195093 (Japanese Unexamined Patent Publication No. 58-195093) a pile press-in and pull-out machine that eliminates the pillars in the conventional structure.

The device proposed above includes a saddle that is gripped and fixed to an existing pile;
It consists of a front-rear movable base that is installed on the saddle, a left-right movable base that can move left and right, and an elevating head that moves up and down with respect to the left-right movable base. and the height of the left and right movable table.

This device configuration not only makes it relatively easy to drive or pull out piles even in places where height is restricted due to obstacles above, but it also maximizes the length from the device to the obstacles above. , it has the advantage that longer stakes can be used.

(Problems to be Solved by the Invention) However, when press-fitting or pulling out piles such as spliced sheet piles using the pile press-in/pull-out machine proposed above, only short piles can be used due to restrictions caused by overhead obstacles such as bridges. Moreover, it is necessary to lift the pile with an auxiliary lifting machine such as a chain block or minyumbo to load or remove it from the lifting head, which further limits the length of the pile. In order to press fit inside, it was necessary to repeatedly load short piles. Further, a worker is required to operate and move the lifting machine, and the machine cannot be easily applied when pressing in or pulling out piles on water.

Furthermore, the problem becomes more serious when chain blocks, miniumbos, etc. for hoisting piles become unusable in narrow spaces where there are obstacles not only above but also on the sides. In other words, if the above-mentioned lifting machine could not be used, the efficiency of the pile press-in/extraction work would be significantly reduced, or the work would become impossible.

Therefore, the purpose of the present invention is to automatically and continuously load and remove piles to and from the lifting head when press-fitting and pulling out piles, and also to enable the piles to be loaded and removed continuously and automatically, even in places where there are obstacles above, such as under bridges, for relatively long piles. Piles can be press-fitted or pulled out using piles,
Moreover, it is an object of the present invention to provide a pile press-in/extraction machine that can shorten working time and reduce the number of working personnel, and dramatically improve working efficiency.

(Means for Solving the Problems) In order to achieve the above object, the pile press-in/extraction machine of the present invention includes a saddle having a clamp for gripping an existing pile, and a base provided so as to be movable back and forth and left and right on the saddle. a lifting head that is movably provided at the front of the base and can be lowered to approximately the same height as the base; a pile holding frame that holds a plurality of piles to be loaded on the base in an upright manner; The present invention is characterized by comprising pile moving devices provided on both sides of the holding frame, which grip the loaded pile at the side ends and move it in parallel above the lifting head.

(Function) Pile press-in and pull-out are performed with the pile press-in and pull-out machine fixed on the existing desk using the clamp provided on the saddle. In the case of pile press-fitting, the lifting head is lowered to the lowest position at the pile press-fitting point and positioned at approximately the same height as the base. Among a plurality of piles, such as sheet piles, which are arranged vertically in a pile holding frame on a base, the foremost pile is held by a pile moving device provided on the side of the pile holding frame.

While holding the pile, the pile moving device is moved forward to move the held pile in parallel and position it above the lifting head.

Next, the elevating head is raised, and the stake is inserted between the chucks built into the elevating head and clamped. In this way, the lifting head is rotated in the direction in which the piles are aligned while the piles are loaded in the lifting head, and then lowered.

As a result, the pile is press-fitted into the ground, and when the lifting head reaches the lower limit, the pile is released from the chuck, the lifting head is raised, the pile is clamped again, and the work is lowered, which is repeated.

In this way, one pile can be press-fitted to a predetermined depth, but if multiple piles are to be press-fitted at the same location, the piles to be continuously supplied are raised and lowered from the anti-holding frame by the anti-shifting device. When the head is loaded and the lower end of the pile clamped by the head comes into contact with the upper end of the existing pile as the lifting head descends, weld, bolt or caulk the abutting part using a splint, etc. Connect by the following method.

By repeatedly performing the above-mentioned press-fitting operation on the combined piles, a desired pile structure such as a retaining wall can be constructed.

For anti-pulling, repeat the above procedure in reverse.

In other words, the existing pile, which has been press-fitted into the ground, is inserted into the lifting head, clamped with a chuck, and the head is raised. The lifting head can be raised until the clamping pile is just about to hit the upper obstacle. When the elevating head is raised to an appropriate height, the above-mentioned joints of the piles are separated, and the piles are gripped by the pile moving device.

Next, the chuck of the elevating head is released and the elevating head is lowered. When the pile is completely removed from the lifting head,
The anti-movement device is driven to move the pile in parallel and accommodate it in the pile holding frame. These pile pulling operations are performed in a reverse process to the pile press-in operations described above, and by repeating the above operations, pile extraction can be performed continuously.

As is clear from the above-mentioned pile press-in/extraction work, there is no need to use special equipment to suspend the piles in order to move them, and since the piles are loaded onto the base of the equipment, it is not necessary to suspend the piles under the bridge. Even when there are obstacles above the pile, continuous pile press-in and pile extraction work can be carried out efficiently.

(Example) Figures 1 to 3 show an embodiment of the pile press-in/extraction machine of the present invention, with Figure 1 being a side view, Figure 2 being a plan view, and Figure 3 being a front view. be.

In the figure, 1 is a saddle. The saddle 1 has a clamp 2.2 in its lower part that grips an existing pile PO1PO that is press-fitted into the ground. A back-and-forth moving table 3a provided on the saddle 1 and movable in the front-back direction (pile row direction), and this back-and-forth moving table 3a
The base 3 is constituted by a left-right movable table 3b that is movable in the left-right direction (orthogonal direction to the pile row). In this embodiment, the left-right moving table 3b is arranged on the front-rear moving table 3a, but of course the structure may be upside down. Good too.

In the illustrated embodiment, the back-and-forth moving table 3a is driven back and forth by a hydraulic plunger cylinder (not shown) provided between it and the saddle 1, and the left-right moving table 3b is driven by a hydraulic plunger cylinder (not shown) provided between it and the saddle 1. It is driven left and right by the 4th grade.

Reference numeral 5 denotes an elevating head that is movable up and down at the front part of the left-right movable table 3a. This elevating head 5 has a left and right moving table 3b.
A sliding bar 7.7 that fits into the M1jk guides FR6, 6 formed in is provided, and is movable in the vertical direction perpendicular to the left and right moving table 3b. Further, the vertical movement of the elevating head 5 is performed by a pair of hydraulic plunger cylinders 8.8 fixed to the left and right movable table 3b.

The lower limit of the vertical movement stroke of the elevating head 5 by the plunger cylinder 8 is approximately the same height as the base 3, and the upper limit is not particularly limited.

Furthermore, the elevating head 5 incorporates a rotating cylinder 9 that can rotate around the entire circumference. This rotating cylinder 9 is provided with a chuck 10 that clamps the pile P.

An annular am made up of a pile holding frame 11 and a pair of left and right pile moving devices 12 is provided on the upper part of the base 3.

The pile holding frame 11 holds a plurality of resistors P stacked in an upright manner. 1i: Holding resistance P so that the frontmost pile P1 of the plurality of holding piles is always located at the forefront of the resistance holding frame 11.
It is preferable that the stake can be pushed forward from behind the holding frame by a suppressing piston member 13 provided at the rear of P.

The anti-movement device 12 is provided on both sides Z of the pile holding frame 11, and has the function of holding the anti-movement devices one by one and moving them to the lifting head 5. This pile moving device 212 consists of a horizontal drive piston 14.14. In this embodiment, vertical drive pistons 15.15 are provided to move each horizontal drive piston 14 up and down, but this is not a necessary element.

Each horizontal drive piston 14 is supported by a guide member 16 provided on the holding frame 1 and is only capable of vertical sliding.

ing.

In addition, each horizontal drive piston 14 has a clamping piston 17 at the tip of the reciprocating rod 14' that moves forward and backward in directions (inwardly) facing each other, and counteracts the resistance P that exists between the rods 14" and 14' from both sides. Each clamping piston 17 has a pile holding member 1 at its inner end.
8 is provided, but if it is necessary to enhance the anti-holding effect of this holding member 18, it is possible to adopt a structure in which this holding member 18 has an anti-gripping function using an appropriate means such as a hydraulic cylinder. good.

The operation of the pile press-in and pull-out machine with the above configuration will be described below, but the saddle 1 and the base 3 have the same functions as the conventional pile press-in and pull-out machine, and are not limiting elements in the present invention, so they will not be particularly mentioned.

Further, for ease of explanation, when press-fitting a pile, a state in which the entire apparatus is placed on an existing pile PO, as shown in FIG. 1, will be explained.

The horizontal drive piston 14.14 of the anti-movement device 12 provided on the side of the holding frame 11 holding a large number of anti-movement units is positioned rearward, and the pile holding member 18.18 is moved to the front row of the piles P1 in the pile holding frame 11. (Then, move the retaining member 18.18 inward to grip the opposing front row of piles P1.On the other hand, position the lifting/lowering unit 5 at the lowest position and attach it to the base. Place it at approximately the same height as 3.

Next, the horizontal drive piston 14.14 is driven to move the pile P1 above the lifting head 5. Horizontal drive piston 14
．． If there is a concern that the lower end of the pile P will come into contact with the top surface of the base 3 and the forward movement of the pile P will not proceed smoothly when the pile 14 is driven forward, raise the vertical drive piston 15.15 once and raise the pile slightly. It's good to move forward. Thereafter, when the rotating cylinder 9 is rotated in an appropriate direction to orient the gripped piles in the alignment direction, the plunger cylinder 8.8 is moved to raise the lifting head 5 and the pile P1 is moved into the lifting head 5 to the maximum extent. Insert the receiver and clamp it with the chuck 10.

Next, the lifting head 5 is moved downward to perform pile press-fitting. When the piles are press-fitted as described above, it is naturally necessary to connect the piles to the piles that have been press-fitted into the ground. in this case,
The gripping pile P1 is brought into contact with the upper end of the pile, and pile joining work such as welding or bolting is performed using a joining plate or the like. The subsequent pile press-fitting procedure, as described above, involves clamping - press-fitting - the pile P1.
The release-head rise can be achieved by a known method of reversing the pile, and by taking out a new pile from the pile holding frame 11 in the above procedure, it is possible to bury a predetermined length of piles in the ground while adding a plurality of piles. Further, the pulling out of the pile can be carried out by the reverse procedure of the press-in of the shaft, as described above.

(Effects) As is clear from the above, according to the present invention, there is a pile holding frame for holding a plurality of piles erected on a base, and a pile is held one by one from this anti-holding frame. An anti-movement device is installed to supply the lifting head to the pile, and the pile can be automatically moved between the lifting head and the pile holding frame when pressing in or pulling out the pile. Loading of piles against the lifting head continuously without using
Removal can be carried out efficiently, reducing working time and eliminating the need for working personnel, thereby dramatically increasing work efficiency.

In addition, since the above-mentioned auxiliary suspension device is not required, it can be effectively applied even if there are spatial restrictions above or around the pile driving site, and it can be used as a short joint at a pile driving site where it is difficult to use long piles. Particularly effective in increasing work efficiency when using long piles.

Furthermore, since multiple piles are held upright on the base and moved one by one in parallel, it is easy to load and store piles into the lifting head, and the height of the entire device can be kept constant. Therefore, if the equipment is installed at the work location, the possibility of pile press-in or pull-out work can be guaranteed at all times.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a side view of the anti-pressure puller, FIG. 2 is a plan view thereof, and FIG. 3 is a front view thereof. 1...Saddle 2...Clamp 3...Base 5...Elevating head 11...Anti-holding frame 12...Anti-displacement device agent Patent attorney 1) Middle 2 Part 1 Figure

Claims (1)

[Claims] a saddle having a clamp capable of gripping the upper end of an existing pile; a base provided on the saddle so as to be movable back and forth and left and right; A lifting head that can be lowered to approximately the same height and has a built-in chuck for gripping and fixing piles, a pile holding frame that holds a plurality of piles loaded on the base in an upright manner, and both sides of the pile holding frame. A pile press-in/extraction machine comprising: a pile moving device which is installed in a pile and clamps the loaded piles one by one at the side ends and moves them in parallel to a position above the lifting head.